I personally can't see the PSU being the issue but you never know.
I have Windows 7 Home Premium 64-Bit. I ran Kombuster for 1 minute 30 ish purely to give a demonstration of the temperatures the card reaches. I have had it running for longer previously but no BSOD occurred.
@tipsy
I understand that it may fix it, it's just the "may" part. May fix it doesn't encourage me to spend well over 24 hours re-installing games and programs.
And I want to try and rule out all possibilities before considering return the card.
As previously mention earlier in the thread would I be able to install my Windows 7 OEM on a 2.5" portable HDD if I gutted the enclosure and connected it to my PC?
If the issue persists it's the card, if not I will need to re-installed Windows 7 on my WD HDD.